Chair base

Description

FIG. 1 is a perspective view of a chair base showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view, the opposite side being a mirror image thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a rear elevational view thereof.

In order to illustrate the environment in which the claimed design is used, exemplary wheels are shown in phantom. The wheels form no part of the claimed design.